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49389460 = 2252469473
BaseRepresentation
bin1011110001100…
…1111110010100
310102221020121021
42330121332110
5100120430320
64522330524
71136542411
oct274317624
9112836537
1049389460
112597403a
1214659a44
13a303543
1467b9108
154508daa
hex2f19f94

49389460 has 12 divisors (see below), whose sum is σ = 103717908. Its totient is φ = 19755776.

The previous prime is 49389421. The next prime is 49389463. The reversal of 49389460 is 6498394.

It can be written as a sum of positive squares in 2 ways, for example, as 28922884 + 20466576 = 5378^2 + 4524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49389463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1234717 + ... + 1234756.

It is an arithmetic number, because the mean of its divisors is an integer number (8643159).

Almost surely, 249389460 is an apocalyptic number.

It is an amenable number.

49389460 is an abundant number, since it is smaller than the sum of its proper divisors (54328448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49389460 is a wasteful number, since it uses less digits than its factorization.

49389460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469482 (or 2469480 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 49389460 is about 7027.7635133803. The cubic root of 49389460 is about 366.8975056983.

The spelling of 49389460 in words is "forty-nine million, three hundred eighty-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 2469473 4938946 9877892 12347365 24694730 49389460